Update exim.md
Update exim.md

email doesnt require a email address
jacobmovingfwd/docs,katieporter/docs,jacobmovingfwd/docs,ksigler7/docs,ksigler7/docs,sendgrid/docs,bogdanboss/docs,Zaftula/docs,Whatthefoxsays/docs,bogdanboss/docs,jacobmovingfwd/docs,Zaftula/docs,katieporter/docs,bogdanboss/docs,sendgrid/docs,Aonepathan/docs,katieporter/docs,Aonepathan/docs,hardikjain29/docs,katieporter/docs,ksigler7/docs,bogdanboss/docs,hardikjain29/docs,bogdanboss/docs,Zaftula/docs,jacobmovingfwd/docs,Whatthefoxsays/docs,Whatthefoxsays/docs,hardikjain29/docs,Zaftula/docs,katieporter/docs,hardikjain29/docs,Aonepathan/docs,Zaftula/docs,Aonepathan/docs,hardikjain29/docs,Aonepathan/docs,sendgrid/docs,jacobmovingfwd/docs